Safety lock for windows



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SAFETY Loox FOR wINDows Filed May 20, 1968 2 sheets-sheet 1 f 74j@ N, I iff/39%, AJ//g f@ fw i/@QL ATTORNEYS.

United States Patent O 3,512,821 SAFETY LOCK FOR WINDOWS Carl T. Savio and Margaret M. Savio, both of 2000 Creston Ave., Bronx, N.Y. 10453 Filed May 20, 1968, Ser. No. 730,326 Int. Cl. Eb l /00, 3/ 00 U.S. Cl. 292-305 4 Claims ABSTRACT 0F THE DISCLOSURE A window lock assembly for locking double hung windows is disclosed. A socket is secured to the top of a lower window and a T-tting with threaded socket is secured to the top of an upper window. A bar can be inserted into the lower socket and then screwed into the upper socket. Set screws in the lower socket secure the bar in place. For locking the windows in partially open position an eyebolt engages on the upper T-tting. A bar with threaded end engages with the eyebolt. The lower end of the bar fits into the lower socket and is secured by the set screws. For Casement windows,v window lock assemblies are described having socket bars which receive U-bars. The U-bars engage handles of the easement windows. The U-bars are held in place by set screws in the socket bars.

The invention concerns an improved safety lock assembly for a window.

Heretofore it has been proposed to provide bar type locks of various types for windows. Such locks `have not provided adequate security because they can be too easily displaced from the windows, or they are difficult to apply and remove, or they require special tools to install, or they are quite complex and require special keys. In an emergency they cannot be removed quickly enough by an authorized person.

The present invention overcomes the above and other diliculties and disadvantages by means of a lock assembly including a quickly mountable and adjustable bar associated with ttings at upper parts of double hung windows. Another form of the invention employs interitted U-bars by means of which easement windows can be quickly, effectively and safely locked until opened by an authorized person. Need for the present invention is particularly urgent in homes and apartments to exclude intruders and prowlers who can pry open windows closed by ordinary window locks.

For further comprehension of the invention and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings and to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawings, forming a material part of this disclosure:

FIG. 1 is a front view of double hung windows shown protected by two window lock assemblies embodying the invention, the windows being shown fully closed.

FIG. 2 is an enlarged sectional view taken on line 2-2 of FIG. l.

FIG. 3 is another front view of the double hung windows with one window partially open and secured by two window lock assemblies.

FIG. 4 is an enlarged vertical sectional view taken on line 4-4 of FIG. 3.

3,512,821 Patented May 19, 1970 lCe FIG. 5 is an exploded perspective view of parts of a window lock assembly such as employed in FIGS. l-4.

FIG. 6 isa front elevational view of parts of two casement windows shown locked by another window lock assembly according to the invention.

FIG. 7 is a horizontal sectional view taken on line 7-7 of FIG. 6.

FIG. 8 is an enlarged exploded perspective view of the window lock assembly of FIG. 6.

FIG. 9 is an exploded perspective view of a further window lock assembly.

Referring first to FIG. 5, there are shown parts of window lock assembly 10. This assembly has a partially circular base plate 12 provided with an upstanding tubular socket 14 having two bores or recesses 15 and 17. This socket has lateral lthreaded holes, 16, 16 at both bores to receive set screws 18 and 18'. Plate 12 has countersunk holes 20 which receive screws 22. A vertically cylindrical bar 24 fits into the open top of bore 15 in socket 14 and can be secured there by tightening screws 18. The upper end 25 of bar 24 is threaded and fits into a threaded tubular vertical socket 26 forming part of T-iitting 27. Socket 26 depends from fixed, stationary, horizontal head 28 of tting 27. Head 28 of the fitting is cylindrical in form and is secured by welding or otherwise to a vertical rectangular plate 30. Plate 30 has corner holes 32 which receive mounting screws 34. The outer end 33 of tting head 28 is threaded and receives a cap nut 36.

Eye 39 of eyebolt 40 engages on. tting head 28 just forwardly of socket 26. Shank 42 of the eyebolt is threaded. Another cylindrical bar 46 is provided to fit into bore 17 of socket 14. The upper end of bar 46 is provided with internally threaded socket 48 which can be screwed adjustably up on shank 42 of the eyebolt. A wrench 50 can be provided for tightening set screws 18. These can be Allen-type screws which have hexagonal recesses 19 at their outer ends to receive wrench 50.

FIGS. 1 and 2 show two assemblies 10 installed on frames 61, 63 of double hung windows 60, 62. The windows are installed slidably in vertical window frame 64 in conventional fashion. Each plate 30 is secured by screws 34 -to the top rail 66 Vof window frame 61. Base plate 12 of each assembly is installed by securing screws 22 in the top rail 68 of window frame 63. B ores 15 of sockets 14 are axially aligned with sockets 26 of the respective assemblies. Bar 24 of each assembly is screwed into socket 26 and locked against rotation by tightened screws 18 in bores 15 of sockets 14. It will be apparent that the upper window 60 cannot be pulled down and the lower window 62 cannot be pushed up. Removal of the locking bars 24 can be easily and quickly accomplished by loosening screws 18 by means of Wrench 50. Then the bars 24 can be screwed out of sockets 26. When the bars are clear of these sockets they can be moved laterally and then pulled upwardly out of sockets 14. Installation of the locking bars 24 can be accomplished by quickly and easily by reverse movements.

FIGS. 3 and 4 show how the window assemblies 10 can be arranged to permit lower window 62 to be partially open a variable distance D. Alternatively upper window can be partially open. As a further alternative both upper and lower Windows can be partially open. To lock the windows partially open position bars 24 are removed and replaced by bars 46. The eyebolts 40 are mounted on heads 28 of T-iitting 27 and abutted to sockets 26. Then they are locked in place by tightening cap nuts 36. The lower ends of bars 46 are inserted in bores 17 of sockets 14 and then the upper sockets 48 are engaged on the shanks 42 of the eyebolts 40. The bars 46 are turned until the lower ends of the bars are at a desired distance from the top rail v66 of window 60. The lower windows are then pushed up until their lower rails 70 are at distance D above the vbottom 72 of the frame 64. Then screws 18 are tightened by means of wrench 50. The two windows 60 and 62 will now be locked together and cannot be moved independently of each other unless the screws 18 are loosened. Even then the windows will be limited to movement less than the length of the interiors of sockets 14. To unlock the two windows from each other, the bars 46 will have to be screwed upon the shanks 42 of the eyebolts until the lower ends of bars 46 clear the tops of sockets 14. Alternatively the bottom ends of lbars 46 can remain in sockets 14 until sockets 48 are screwed down clear of the shanks 42 of the eyebolts. Then the bars 46 can be removed. Plates 12 and 30 remain in place at all times so that windows can be locked fully closed by use of bars 24, or in partially closed portions by use of bars 46 and eyebolts 40.

For narrow windows, only one window lock assembly may be sufficient to secure a window against opening by an intruder outside the window. For very wide windows two or three window lock assemblies 10 may be required. If the wrench or key 50 is taken away and hidden, unauthorized persons, children and others at inner sides of the windows will not be able to open the windows if they are locked by means of one or more lock assemblies 10. This provides a further measure of security by insuring that the windows will only be opened by authorized persons having access to wrench or key 50.

In FIGS. 6-8 is shown another window lock assembly 100 especially adapted for locking Casement windows 102, 104 which pivot on axially vertical hinges (not Shown). The windows are carried by a frame 105 of which only central vertical rail 106 is shown. The window panes 108, 110 are mounted in frames 112, 114 which can normally be pivoted outwardly away from rail 106, as indicated by arrows A. Frames 112, 114 are brackets 116 pivotally supporting inwardly extending curved handles 118, 120 by means of pins 122. Tongues 124 of the handles engage in catches 126 secured to rail 106. To the extent described the arrangement of Casement windows is conventional.

Window lock assembly 100 has two parallel tubular sockets 130, 132 provided with threaded holes 134 at opposite ends. These holes receive set screws 136. Two U- bars 138 and 139 have free ends which engage in bores 140 in the sockets 130, 132. The bars can be locked in place by tightening the set screws 136.

As clearly shown in FIGS. 6 and 7, one socket 130 can be placed horizontally near upper ends of the brackets 116 and the other socket will be placed near bottom ends of the brackets. The two U-bars can then be inserted into opposite ends of the sockets with bights of the bars engaged between the handles 118, 120 and the window panes 108, 110. The U-bars are pushed inwardly of the sockets as far as they can go and then the screws 136 are tightened. Now the Windows 102, 104 cannot be opened even if the handies are turned to disengage tongues 124 from the catches from the inside or outside the windows because the U-bars prevent this. Thus the windows are safely and effectively locked and cannot be opened by an intruder or prowler from the outside. Similarly, children and other unauthorized persons who do not have the wrench or key v50 to loosen screws 136 cannot open the window lock assembly from inside the windows.

FIG. 9 shows a modified form of window lock assembly 100A which can be used like assembly 100 but with a more limited range of adiustability. Here the two sockets 130' and 132 are integral with an end loop 138. Only the one U-bar is employed to fit in bore 140. The bar `is 4 secured in place by means of set screws 136 in threaded holes 134.

In all forms of window lock assemblies described, a removable wrench or key is employed to tighten set screws and lock removable lock bars in place so that locked windows cannot be opened by unauthorized persons from the inside or outside the windows. The parts of the window lock assemblies are rugged in construction, inexpensive to manufacture, and easy to install and use without requiring any special skill.

While we have illustrated and described the preferred embodiments of our invention it is to be understood that we do not limit ourselves to the precise construction herein disclosed and that various changes and modifications may be made within the scope of the invention.

What is claimed is:

1. A window lock assembly for double hung windows, comprising iirst and second sockets, said second socket having two bores therein; a iirst bar engageable at opposite ends in the first socket and in one bore of the second socket; a screw carried by one of the sockets for engaging one end of the bar to prevent removal of the bar from both sockets; a base plate securable to the top of the lower one of the double hung windows, said second socket extending upwardly from said base plate; a second bar engageable at one end in the other Ibore in said second socket and extensible upwardly therefrom, said second bar terminating at its other end in au internally threaded third socket; another plate securable to the top of the upper one of the double hung windows; a T-iitting secured to the other plate, said T-fitting having a head extending outwardly of said other plate, said first socket forming part of the T-tting and depending from said head; an eyebolt having an eye engageable on said head of the T-fitting; a nut engageable on said head for holding the eyebolt on the T-fitting in abutment with said rst socket, said eyebolt having a threaded shank, said third socket adjustably engaging the threaded shank of the eyebolt while the one end of the second bar is engaged in said other bore of the second socket, whereby the windows are immovable with respect to each other when said screw is tightened to hold the one end of the first bar in said one bore of the second socket, and whereby the windows are limited to partially open position when the first bar is removed from the sockets and the second -bar is engaged in the other bore while the eyebolt is engaged on said head of the T-fitting.

2. A window lock as defined in claim 1, wherein said first socket and the other end of the first bar is slidably engaged in the one bore of the second socket.

3. A window lock as defined in claim 1, further cornprising another screw carried by the second socket and engageable with said one end of the second bar in said other bore, so that the windows are immovable with respect to each other in partially open position when said other screw is tightened to engage the one end of the second bar.

4. A window lock assembly, comprising a pair of sockets, a bar engageable at opposite ends in the respective sockets, at least one set screw carried by at least one of the sockets for engaging one end of the bar to prevent removal ofthe bar from both sockets, each of said sockets being a tubular member open at one end, said bar being a U-shaped member having free opposite ends insertable into the open ends of the respective tubular members, said bar being engageable with a rotatable handle of a easement window to prevent opening the window, said tubular members are each open at the other end, and further comprising another U-shaped bar having free ends insertable in the other ends of the tubular members and arranged to engage on another handle of another casement window, and at least one other set screw carried by at least one of the tubular members for engaging a free end of the other U-shaped bar.

(References on following page) References Cited UNITED STATES PATENTS Huth 292-305 Damon 70-39 X schairer 292-305 5 Norris 16-125 Gibbons 292--305 Holmster 70-89 6 2,613,523 10/ 1952 Holmster 70-89 2,714,033 7/1955 Lewgood 70-90 X 3,136,290 6/1964 Bailey 70-90 X RICHARD E. MOORE, Primary Examiner E. I. MCCARTHY, Assistant Examiner US. C1, X.R. 70-89 

